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  • Your indispensable
    medicinal chemistry data partner
  • The largest SAR knowledgebase
    in the world
  • Meticulously hand-crafted data for
    best-in-class quality
  • Clean and crisp interface for
    search and navigation
  • Interact with GOSTAR data the way YOU want!
    Full or partial data download
    Secured web-based access
    API Integration
    On-site deployment of application

Enduring Partnerships Based on Trust

Top Chemistry Publishers
15 of Top 20 Large Pharma
Innovative Biotechs
Cutting-Edge AI Companies

GOSTAR is the largest Structure Activity Relationship (SAR) database for drug discovery.

With a unique artisanal approach, our scientists have meticulously curated a 360˚ view of close to 8 million small molecule discovery compounds and ~40,000 preclinical/clinical candidates, and approved drugs.

From target profiling to hit identification and lead optimization, GOSTAR is the perfect resource for the medicinal and computational chemists capturing granular assay data across chemical, biological, pharmacological and therapeutic dimensions. Further, Excelra provides custom curation support for bespoke client needs, data preparation for AI/ML modeling and secure curation on the cloud of proprietary client data.

Meticulously hand-crafted data for best-in-class quality

60% Complete

10.3 M

Functional Assays

1.6 M

ADME and Toxicity Assay Data

23.9 K


21.4 K


5.6 K

Launched Drugs

Clinical Trial

Customer Requests

FDA/EMEA Reports


Public Repositories


Company Websites

Scientific Reviews

Journal Articles

The largest SAR knowledgebase in the world

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